I cannot even begin to describe how amazing this question was. It was so incredibly difficult and challenging, but all the students stuck with it and gave it a go. There are so many levels on this. What a puzzle! I need to make more of these.
You have a full-time job in the summer vacation months of July and August; and you save all the money you make in an account at the bank.
You do odd jobs and gardening 4 days a week. For each job you do, you receive $12. It takes you an hour and a half to complete a job, and there are about 9 hours of good sunlight a day. Your mother will not let you work more than 9 hours a day.
At the end of the summer; how much money will you have in your savings account?
Try this as a lesson in perseverance and organization.